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diff --git a/nxcomp/CreateGC.h b/nxcomp/CreateGC.h
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+/**************************************************************************/
+/* */
+/* Copyright (c) 2001, 2010 NoMachine, http://www.nomachine.com/. */
+/* */
+/* NXCOMP, NX protocol compression and NX extensions to this software */
+/* are copyright of NoMachine. Redistribution and use of the present */
+/* software is allowed according to terms specified in the file LICENSE */
+/* which comes in the source distribution. */
+/* */
+/* Check http://www.nomachine.com/licensing.html for applicability. */
+/* */
+/* NX and NoMachine are trademarks of Medialogic S.p.A. */
+/* */
+/* All rights reserved. */
+/* */
+/**************************************************************************/
+
+#ifndef CreateGC_H
+#define CreateGC_H
+
+#include "Message.h"
+
+//
+// Set the verbosity level.
+//
+
+#define PANIC
+#define WARNING
+#undef TEST
+#undef DEBUG
+#undef DUMP
+
+//
+// Set default values.
+//
+
+#define CREATEGC_ENABLE_CACHE 1
+#define CREATEGC_ENABLE_DATA 0
+#define CREATEGC_ENABLE_SPLIT 0
+#define CREATEGC_ENABLE_COMPRESS 0
+
+#define CREATEGC_DATA_LIMIT 144
+#define CREATEGC_DATA_OFFSET 16
+
+#define CREATEGC_CACHE_SLOTS 2000
+#define CREATEGC_CACHE_THRESHOLD 2
+#define CREATEGC_CACHE_LOWER_THRESHOLD 1
+
+//
+// The message class.
+//
+
+class CreateGCMessage : public Message
+{
+ friend class CreateGCStore;
+
+ public:
+
+ CreateGCMessage()
+ {
+ }
+
+ ~CreateGCMessage()
+ {
+ }
+
+ //
+ // Put here the fields which constitute
+ // the 'identity' part of the message.
+ //
+
+ private:
+
+ unsigned int gcontext;
+ unsigned int drawable;
+ unsigned int value_mask;
+};
+
+class CreateGCStore : public MessageStore
+{
+ //
+ // Constructors and destructors.
+ //
+
+ public:
+
+ CreateGCStore() : MessageStore()
+ {
+ enableCache = CREATEGC_ENABLE_CACHE;
+ enableData = CREATEGC_ENABLE_DATA;
+ enableSplit = CREATEGC_ENABLE_SPLIT;
+ enableCompress = CREATEGC_ENABLE_COMPRESS;
+
+ dataLimit = CREATEGC_DATA_LIMIT;
+ dataOffset = CREATEGC_DATA_OFFSET;
+
+ cacheSlots = CREATEGC_CACHE_SLOTS;
+ cacheThreshold = CREATEGC_CACHE_THRESHOLD;
+ cacheLowerThreshold = CREATEGC_CACHE_LOWER_THRESHOLD;
+
+ messages_ -> resize(cacheSlots);
+
+ for (T_messages::iterator i = messages_ -> begin();
+ i < messages_ -> end(); i++)
+ {
+ *i = NULL;
+ }
+
+ temporary_ = NULL;
+ }
+
+ virtual ~CreateGCStore()
+ {
+ for (T_messages::iterator i = messages_ -> begin();
+ i < messages_ -> end(); i++)
+ {
+ destroy(*i);
+ }
+
+ destroy(temporary_);
+ }
+
+ virtual const char *name() const
+ {
+ return "CreateGC";
+ }
+
+ virtual unsigned char opcode() const
+ {
+ return X_CreateGC;
+ }
+
+ virtual unsigned int storage() const
+ {
+ return sizeof(CreateGCMessage);
+ }
+
+ //
+ // Message handling methods.
+ //
+
+ public:
+
+ virtual Message *create() const
+ {
+ return new CreateGCMessage();
+ }
+
+ virtual Message *create(const Message &message) const
+ {
+ return new CreateGCMessage((const CreateGCMessage &) message);
+ }
+
+ virtual void destroy(Message *message) const
+ {
+ delete (CreateGCMessage *) message;
+ }
+
+ virtual int parseIdentity(Message *message, const unsigned char *buffer,
+ unsigned int size, int bigEndian) const;
+
+ virtual int unparseIdentity(const Message *message, unsigned char *buffer,
+ unsigned int size, int bigEndian) const;
+
+ virtual void updateIdentity(EncodeBuffer &encodeBuffer, const Message *message,
+ const Message *cachedMessage,
+ ChannelCache *channelCache) const;
+
+ virtual void updateIdentity(DecodeBuffer &decodeBuffer, const Message *message,
+ ChannelCache *channelCache) const;
+
+ virtual void identityChecksum(const Message *message, const unsigned char *buffer,
+ unsigned int size, int bigEndian) const;
+
+ virtual void dumpIdentity(const Message *message) const;
+};
+
+#endif /* CreateGC_H */